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Account Book

Description: Patent for an account book that is to be used "to receive in condensed form the dates and other particulars when sums are due to and from a person or firm are payable" (p. 2).
Date: May 21, 1889
Creator: Goldberg, Samuel W. & Tillmann, Emanuel M.
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Generator

Description: Patent for an acetylene-gas generator which automatically feeds carbid to the generator and in which the gas generated is washed within the bell.
Date: August 21, 1906
Creator: Nunn, John W. & Griffin, Thomas D.
Partner: UNT Libraries Government Documents Department

Acetylene-Gas Generator.

Description: Patent for an acetylene gas generator that automatically feeds carbide into the water tank and cleans the feed valve.
Date: January 21, 1919
Creator: Furr, Oscar M.
Partner: UNT Libraries Government Documents Department

Adding and Subtracting Machine

Description: Patent for an improved adding and subtracting machine adapted to be attached to the end of a lead pencil. It is readily manufactured and simple in construction.
Date: September 21, 1918
Creator: Wittnebert, Duke
Partner: UNT Libraries Government Documents Department

Adding-Machine.

Description: Patent for an inexpensive, simple, easily operated, and improved registering machine that is meant to add numbers without mistakes. It uses revoluble number wheels and a spring-returned shaft among other materials.
Date: March 21, 1893
Creator: Brooks, Augustus J.
Partner: UNT Libraries Government Documents Department

Air-Blast Cotton-Gin

Description: Patent for airing out the lent from the brushes on the ginn. This also uses less power than the ones before.
Date: November 21, 1914
Creator: Ginn, Carrollvernon B.
Partner: UNT Libraries Government Documents Department

Air Brake

Description: Patent for air brakes. Illustration included.
Date: March 21, 1905
Creator: Minnick, Hezekiah
Partner: UNT Libraries Government Documents Department

Air-Cooling Apparatus.

Description: Patent for an air cooling apparatus for air to be delivered into a room treated with moisture to reduce the temperature of the air without the use of ice.
Date: March 21, 1916
Creator: Hollenburger, Joseph
Partner: UNT Libraries Government Documents Department

Air-Gun

Description: Patent for an air gun. Illustrations included.
Date: June 21, 1910
Creator: Heckman, George E.
Partner: UNT Libraries Government Documents Department

Air Motor.

Description: Patent for a new and improved air-motor. This design is of an "air-motor, consisting of an engine, single-acting air-pump, air-receiver, and the double-acting exhaust-pump, with the valves and connections . . . [and] the levers and segments" (lines 81-87).
Date: July 21, 1885
Creator: Koniakowsky, Alois M.
Partner: UNT Libraries Government Documents Department

AIR REGULATING ATTACHMENT

Description: Patent for an Air Regulating Attachment. This new invention for an air regulating attachment builds upon previous advancements to create an inexpensive air regulating attachment system, which will in turn be used to regulate engine carburetors (Oscar Kiessing).
Date: April 21, 1919
Creator: Kiessig, Oscar
Partner: UNT Libraries Government Documents Department

Airship

Description: Patent for an airshape. This invention is of a helicopter design. Illustration included.
Date: January 21, 1913
Creator: Darche, James
Partner: UNT Libraries Government Documents Department

Alarm for Incubators

Description: Patent for an alarm that sounds upon the temperature in an incubator either increasing or decreasing.
Date: November 21, 1916
Creator: Poore, John F.
Partner: UNT Libraries Government Documents Department

Animal-Poke

Description: Patent for an animal poke that is worn on the head of the animal to prevent it from breaking or going underneath wire fences.
Date: May 21, 1907
Creator: Carter, Joel F.
Partner: UNT Libraries Government Documents Department

Animal Tag.

Description: Patent for a new and improved animal tag. This design "consists in an animal-tag formed of a tube provided with a removable cover and an elongated staple for the strap, by which this tube is held to the animal" (lines 11-14).
Date: November 21, 1882
Creator: Queen, Elias G.
Partner: UNT Libraries Government Documents Department

Apparatus For Cementing Wells.

Description: Patent for new and useful improvements in processes of and apparatus for cementing wells, including instructions and illustrations.
Date: November 21, 1899
Creator: Baca, August
Partner: UNT Libraries Government Documents Department

Apparatus for Heating up Locomotive-Boilers.

Description: Patent for an "apparatus for kindling fires in locomotives; and it is intended to provide an improved apparatus by which the fires may be rapidly and economically kindled and steam may be gotten up without much of the tedious delay now ordinarily incident to raising steam in a cold locomotive-boiler." (Lines 13-19) Includes instructions and illustrations.
Date: January 21, 1896
Creator: Connor, John T.
Partner: UNT Libraries Government Documents Department

Apparatus for Molding Hollow Concrete Walls

Description: Patent for an apparatus that is a mold for crafting hollow concrete walls. Illustration included.
Date: December 21, 1909
Creator: Nelson, William E.
Partner: UNT Libraries Government Documents Department

Apparatus for Producing Ammoniacal Gas.

Description: Patent for a new and improved refrigerator and ice machine. This design "consists in an improved construction, whereby the gas is relieved of its moisture before entering the condenser, a better apparatus is obtained, and repairs are facilitated and cheapened" (lines 12-16).
Date: July 21, 1885
Creator: Lee, Charles B.
Partner: UNT Libraries Government Documents Department

Apparatus for Retailing Shot.

Description: Patent for a new and improved round dispenser. This design "consists in a receptacle or multiple bin the several compartments of which are provided with valves controlling exit-openings, whereby any desired quantity of shot, descending by gravity from the appropriate compartment, may be directed into the scale-pan of a scale without the necessity of lifting the receptacle or bin or any part of its contents" (lines 35-43).
Date: September 21, 1880
Creator: Stokes, Micajah
Partner: UNT Libraries Government Documents Department

Apparatus for Separating Cotton from its Seed

Description: Patent for an apparatus for separating cotton from its seed that uses heat and air to separate the cotton.
Date: February 21, 1911
Creator: Myers, Absalom G.
Partner: UNT Libraries Government Documents Department

Apparatus for Separating or Concentrating Ores.

Description: Patent for an improvement to hydraulic separators used in frothing classification to increase the recovery of larger mineral particles.
Date: October 21, 1919
Creator: Cole, David
Partner: UNT Libraries Government Documents Department

Apparatus for Treating Cotton-Seed Hulls

Description: Patent for "a simple and durable plant capable of use in carrying out a dry process of reducing the hulls to a finely-divided condition" (lines 8-13).
Date: October 21, 1890
Creator: Bohn, Emil
Partner: UNT Libraries Government Documents Department
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